Torque spec for an oil pump housing? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

makinen · 10-14-2017, 10:51 PM

Hi guys,

I'm preparing engine build.
A Reimax oil pump gear is prepared, but I can't find any torque spec or assembly instructions regarding the oil pump housing from the FR-S service manual.

Please let me know the related info.
Thanks.

Hanjo

Trdfrssx · 07-09-2021, 05:13 PM

I need this info too, anyone??

humfrz · 07-09-2021, 10:43 PM

Maybe you can find it here -

I'm too lazy to look. Torque specs have been referenced on this forum, but I'm too lazy to search.

I asked Bubba, and he said "medium tight".

https://www.subarucar.net/sites/suba...FA20D_DOHC.pdf

Trdfrssx · 07-13-2021, 04:47 PM

No spec giving there either. I couldn't find the specification in the engine mechanical manual also.
I've decided on the next best option which is to loosen & tighten the bolt. A torque wrench with an angle gauge helps here or you can mark the bolt, break loose the bolt, and measure the torque value it takes to line up the marks again.

humfrz · 07-13-2021, 06:03 PM

For cryen out loud - jest tighten that sucker down -

Ultramaroon · 07-13-2021, 08:20 PM

Link to manual in my sig line

NoHaveMSG · 07-13-2021, 08:29 PM

It is not in there. I would measure the diameter and thread pitch of the bolt and go off generic specs for it. Most of the specs in the manual are generic anyway.

Ultramaroon · 07-14-2021, 12:52 PM

Quote:

Originally Posted by NoHaveMSG

It is not in there. I would measure the diameter and thread pitch of the bolt and go off generic specs for it. Most of the specs in the manual are generic anyway.

M6x1.0 in aluminum... Same as what's spec'd for the oil pan or timing cover?

NoHaveMSG · 07-14-2021, 12:58 PM

Quote:

Originally Posted by Ultramaroon

M6x1.0 in aluminum... Same as what's spec'd for the oil pan or timing cover?

7 ft lbs sounds about right. I think that is what the 6mm on the timing cover is spec'd. I'd want to do it in 3 steps since it is a pretty thin cover and I wouldn't want to risk binding on the pump. Hand tight, 4-5 ft lbs, then final torque at 7 ft lbs.

10-14-2017, 10:51 PM	#1
makinen Senior Member Join Date: Jan 2013 Drives: Toyota 86 Location: South Korea Posts: 230 Thanks: 117 Thanked 153 Times in 94 Posts Mentioned: 4 Post(s) Tagged: 0 Thread(s)	Torque spec for an oil pump housing? Hi guys, I'm preparing engine build. A Reimax oil pump gear is prepared, but I can't find any torque spec or assembly instructions regarding the oil pump housing from the FR-S service manual. Please let me know the related info. Thanks. Hanjo __________________ /* Custom underbody panels and diffuser Custom electric water pump and PWM controller HKS GT EL header, 17MY intake manifold */

07-09-2021, 05:13 PM	#2
Trdfrssx Member Join Date: Dec 2020 Drives: 2013 Scion FRS Location: Wisconsin Posts: 15 Thanks: 4 Thanked 7 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I need this info too, anyone?? Last edited by Trdfrssx; 07-09-2021 at 05:29 PM.

07-13-2021, 08:20 PM	#6
Ultramaroon tea and sympathy Join Date: Sep 2014 Drives: a 13 e8h frs Location: vantucky, wa Posts: 30,337 Thanks: 49,248 Thanked 34,125 Times in 17,799 Posts Mentioned: 1077 Post(s) Tagged: 9 Thread(s)	Link to manual in my sig line __________________ service manuals

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07-09-2021, 10:43 PM	#3
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 29,264 Thanks: 27,746 Thanked 30,545 Times in 15,965 Posts Mentioned: 696 Post(s) Tagged: 2 Thread(s)	Maybe you can find it here - I'm too lazy to look. Torque specs have been referenced on this forum, but I'm too lazy to search. I asked Bubba, and he said "medium tight". https://www.subarucar.net/sites/suba...FA20D_DOHC.pdf

07-13-2021, 04:47 PM	#4
Trdfrssx Member Join Date: Dec 2020 Drives: 2013 Scion FRS Location: Wisconsin Posts: 15 Thanks: 4 Thanked 7 Times in 5 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	No spec giving there either. I couldn't find the specification in the engine mechanical manual also. I've decided on the next best option which is to loosen & tighten the bolt. A torque wrench with an angle gauge helps here or you can mark the bolt, break loose the bolt, and measure the torque value it takes to line up the marks again.

07-13-2021, 06:03 PM	#5
humfrz Senior Member Join Date: May 2013 Drives: 2013 FR-S, white, MT Location: Puyallup, WA Posts: 29,264 Thanks: 27,746 Thanked 30,545 Times in 15,965 Posts Mentioned: 696 Post(s) Tagged: 2 Thread(s)	For cryen out loud - jest tighten that sucker down -

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